:root{--bg: #f4f6f8;--surface: #ffffff;--surface-2: #eef2f5;--border: #dde3e9;--text: #16202a;--muted: #5d6c7b;--faint: #8996a3;--brand: #0f766e;--brand-dark: #0b5a54;--brand-soft: #e3f2f0;--accent: #b45309;--danger: #b91c1c;--danger-soft: #fdeaea;--ok: #15803d;--ok-soft: #e7f5ec;--warn-soft: #fdf4e3;--radius: 10px;--shadow: 0 1px 2px rgba(16, 32, 42, .06), 0 4px 14px rgba(16, 32, 42, .05);--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:var(--brand)}button{font:inherit}.shell{min-height:100%;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:40;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:14px;padding:0 18px;height:58px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;font-weight:650}.brand-mark{width:30px;height:30px;border-radius:8px;flex:none;background:radial-gradient(circle at 32% 30%,#4ade80 0,#4ade80 18%,#16a34a 30%,#064e3b 74%);box-shadow:inset 0 0 0 1px #ffffff40}.brand-text{display:flex;flex-direction:column;line-height:1.15}.brand-text small{font-weight:400;font-size:11.5px;color:var(--muted)}.nav{display:flex;gap:2px;margin-left:12px;flex:1;overflow-x:auto}.nav a{padding:7px 12px;border-radius:8px;text-decoration:none;color:var(--muted);font-size:14px;font-weight:500;white-space:nowrap}.nav a:hover{background:var(--surface-2);color:var(--text)}.nav a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}.topbar-user{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}.avatar{width:30px;height:30px;border-radius:50%;flex:none;background:var(--brand);color:#fff;font-size:12.5px;font-weight:650;display:grid;place-items:center}.page{flex:1;width:100%;max-width:1220px;margin:0 auto;padding:22px 18px 60px}h1{font-size:24px;margin:0 0 6px;letter-spacing:-.2px}h2{font-size:18px;margin:26px 0 12px;letter-spacing:-.1px}h3{font-size:15px;margin:0 0 8px}.lead{color:var(--muted);margin:0 0 20px;max-width:74ch}.muted{color:var(--muted)}.faint{color:var(--faint);font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-pad{padding:18px}.grid{display:grid;gap:14px}.grid-auto{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:999px;font-size:11.5px;font-weight:600;letter-spacing:.01em;background:var(--surface-2);color:var(--muted);white-space:nowrap}.badge.brand{background:var(--brand-soft);color:var(--brand-dark)}.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.warn{background:var(--warn-soft);color:var(--accent)}.badge.danger{background:var(--danger-soft);color:var(--danger)}.badge.code{font-family:var(--mono);font-size:11px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 16px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;font-weight:550;cursor:pointer;text-decoration:none;transition:background .12s,border-color .12s}.btn:hover{background:var(--surface-2)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}.btn.ghost:hover{background:var(--surface-2)}.btn.sm{padding:6px 11px;font-size:13px}.btn.block{width:100%}.pattern-nav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 18px}.pattern-nav-count{color:var(--faint);font-size:12px;font-family:var(--mono)}.field{margin-bottom:14px}.field 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var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .12s,box-shadow .12s}.pcard:hover{transform:translateY(-2px);box-shadow:0 4px 18px #10202a1c}.pcard .ph{aspect-ratio:4/3;background:#0b1015;position:relative}.pcard .ph img{width:100%;height:100%;object-fit:cover}.pcard .ph .empty{display:grid;place-items:center;height:100%;color:#4b5b68;font-size:12.5px}.pcard .pb{padding:11px 13px 13px}.pcard .pb .code{font-family:var(--mono);font-size:11.5px;color:var(--brand);font-weight:700}.pcard .pb .nm{font-weight:600;font-size:14px;margin:2px 0 5px;line-height:1.3}.pcard .pb .sm{font-size:12.5px;color:var(--muted);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.infotable{width:100%;border-collapse:collapse;font-size:13.5px}.infotable th,.infotable td{padding:9px 12px;border:1px solid var(--border);vertical-align:top;text-align:left}.infotable 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var(--danger)}.note.icap{background:var(--brand-soft);border-left:3px solid var(--brand)}.note-ico{flex:none;font-weight:700}.quiz-wrap{max-width:1080px;margin:0 auto}.quiz-top{display:flex;align-items:center;gap:14px;margin-bottom:14px;flex-wrap:wrap}.progress{flex:1;min-width:160px;height:7px;background:var(--surface-2);border-radius:99px;overflow:hidden}.progress>i{display:block;height:100%;background:var(--brand);transition:width .3s}.quiz-img{background:#000;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}.quiz-img img{width:100%;max-height:62vh;object-fit:contain;background:#000}.optgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px}.opt{padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface);cursor:pointer;text-align:left;font-size:13.5px;transition:border-color .12s,background .12s}.opt:hover{border-color:var(--brand);background:var(--brand-soft)}.opt.sel{border-color:var(--brand);background:var(--brand-soft);font-weight:600}.opt.right{border-color:var(--ok);background:var(--ok-soft)}.opt.wrong{border-color:var(--danger);background:var(--danger-soft)}.opt .oc{font-family:var(--mono);font-size:11px;color:var(--brand);display:block;font-weight:700}.scorebig{font-size:46px;font-weight:700;letter-spacing:-1px;line-height:1}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#060a0eed;display:flex;flex-direction:column;padding:16px}.lightbox img{flex:1;min-height:0;object-fit:contain;margin:auto}.lightbox-bar{display:flex;justify-content:space-between;align-items:center;color:#dfe6ec;font-size:13px;padding-bottom:10px;gap:12px}.lightbox-bar button{background:transparent;border:1px solid #45525e;color:#dfe6ec;border-radius:7px;padding:5px 12px;cursor:pointer}.center-box{max-width:430px;margin:8vh 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14px;gap:10px}.nav{order:3;width:100%;margin-left:0}.page{padding:16px 14px 48px}h1{font-size:20px}.infotable th{width:auto}.infotable,.infotable tbody,.infotable tr,.infotable th,.infotable td{display:block;width:100%}.infotable th{border-bottom:none}.infotable td{border-top:none;margin-bottom:8px}}